1369881 has 12 divisors (see below), whose sum is σ = 2083120. Its totient is φ = 865080.

The previous prime is 1369871. The next prime is 1369883. The reversal of 1369881 is 1889631.

It is not a de Polignac number, because 1369881 - 2⁹ = 1369369 is a prime.

It is a super-2 number, since 2×1369881² = 3753147908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3835 + ... + 4176.

2^1369881 is an apocalyptic number.

It is an amenable number.

1369881 is a deficient number, since it is larger than the sum of its proper divisors (713239).

1369881 is a wasteful number, since it uses less digits than its factorization.

1369881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8033 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1369881 is about 1170.4191556874. The cubic root of 1369881 is about 111.0608383313.

The spelling of 1369881 in words is "one million, three hundred sixty-nine thousand, eight hundred eighty-one".